EP0401583B1 - Méthode et dispositif pour évacuer des buées - Google Patents

Méthode et dispositif pour évacuer des buées Download PDF

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Publication number
EP0401583B1
EP0401583B1 EP90109564A EP90109564A EP0401583B1 EP 0401583 B1 EP0401583 B1 EP 0401583B1 EP 90109564 A EP90109564 A EP 90109564A EP 90109564 A EP90109564 A EP 90109564A EP 0401583 B1 EP0401583 B1 EP 0401583B1
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EP
European Patent Office
Prior art keywords
hood
filter
flow
jet
wall
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP90109564A
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German (de)
English (en)
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EP0401583A1 (fr
Inventor
Hannelore Röhl-Hager
Georg Dr.-Ing. Habil. Koppenwallner
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Individual
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Individual
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Priority to AT90109564T priority Critical patent/ATE93042T1/de
Publication of EP0401583A1 publication Critical patent/EP0401583A1/fr
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes

Definitions

  • the invention relates to an extractor hood according to the preamble of claim 1 and a method for extracting rising vapor according to the first part of claim 9.
  • extractor hoods are arranged above the vapors, which suck the vapors and vapors through a filter surface using a fan and either return the filtered air to the work area (recirculation hood) or convey it to the outside via an exhaust air duct (exhaust hood). All conventional extractor hoods have in common that the steam or haze is drawn to the filter surface via a suction flow.
  • Hot water vapor has a density ⁇ D at 100 ° C, which is about half the density ⁇ L of the surrounding air.
  • a thermal upward force acts on the steam, which tries to drive it upwards with an acceleration b ⁇ 9.81 m / s2. This acceleration is counteracted by the friction with the surrounding air at the edge of the vapor flow, which delays the edge areas and thus causes a mushroom-shaped vapor flow.
  • the boiling water vapor has an upward speed of 3.1 m / s after a distance of 0.5 m. It must therefore be stowed in front of the filter area, since it can only flow through this filter area at the above-determined speed of 0.42 m / s. With this jam, part of the cooking steam escapes into the kitchen via the edges of the extractor hood without having enough storage space. In order to prevent this, various fresh air curtains have been proposed which are directed downwards from the edge of the hood. Corresponding suggestions can be found, for example, in the following DE-OSes 22 59 670, 19 63 456, 19 24 345, and 16 04 293.
  • DBGM 85 34 453 discloses an extractor hood with an approximately rectangular cross section with a separate feed line and suction line.
  • the air coming from the supply line into the feed chamber formed by an inclined partition wall and the vertical side wall is discharged as a free jet via a rounded flow channel and an outlet opening. that is, directed as a jet without lateral limitation, against the filter arranged obliquely on the opposite side of the hood and arranged inside the hood.
  • the flat free steel emerging from the outlet opening is cone-shaped diagonally upwards in the direction of the filter and is guided by one edge, and can be deflected by environmental influences, so that a clear guidance of the jet is not achieved, edge currents are not detected by the suction fan and that Effectiveness of the hood is reduced.
  • An extractor hood according to US-A-4 043 319 has a blowing nozzle arrangement on the front lower edge of the hood. Blown air is not directed as a wall jet and not nearly horizontally against the filter in the rear hood area. Air from the nozzle 70 is guided along the bottom side 62 as a wall jet for a short distance, but at the transition point 62/63 the wall jet is torn off and vortices V1 are formed along the surface 63, which cause the rising steam V is pushed somewhat back into the filter 50. When the steam flow V and the jet jet meet, there is no longer a horizontal wall jet, but the vortices, as extensions of the wall jet, rotate and are directed upwards. The underside of the hood is only approximately horizontal over an initial part, but in the second, decisive part it slopes steeply upwards.
  • the blowing jet is not designed as a wall jet, since there is a free space between the upper limit of the fan-shaped jet and the associated wall 21; the wall 21 is inclined upwards and backwards, and the blowing jet is directed slightly upwards. Furthermore, the wall 21 is an inner wall of the hood, not the underside of the hood.
  • the filter 15 is also arranged in the interior of the hood at a distance from the rear of the hood housing.
  • US-A-41 53 044 shows an extractor hood with a throttle plate 78 and a rectilinear part 76a of the deflection device which together define a slot which forms a defined air flow 79 directed downwards against the filter 80.
  • the air flow 79 is not a wall jet, but a free jet, as is evident from the jet-free area between the upper boundary of the jet cone 79 and the underside of the wall 74.
  • Such a free jet is deflected upwards very easily by the upward-directed vapor flow or other flow influences outside the hood, so that the blowing jet would have to be generated with very high power in order to achieve a sufficient effect.
  • the fan power can be increased, which, however, usually results in a very high noise level, or fold-out screens can be installed at the front edge of the hood, but their effectiveness is relatively limited, which considerably impair the view of the cooking surface, and that contaminate relatively quickly due to water vapor and fat condensation.
  • the object of the invention is to develop an extractor hood of the generic type in such a way that the vapor stream rising from the vapor source is completely detected and escape into the kitchen or the surrounding space is prevented; At the same time, the performance of the suction fan and thus the noise level and the overall height of the hood should be as low as possible, and the effectiveness of the hood should be kept as large as possible.
  • the present invention thus proposes to blow a horizontal air jet from the front hood edge to the filter surface located at the rear hood end.
  • This air jet is taken from the blower as blown air, deflected at the front edge of the hood and shaped through a slot in the front edge of the hood along the underside of the hood led by a wall jet.
  • This wall jet detects the vertically rising vapor flow and leads it to the filter surface.
  • the wall jet acts like an aerodynamic conveyor belt; the speed of the wall jet is higher than the speed of the rising cooking vapor, which is not delayed when it is detected on the underside of the hood.
  • the air flow to the filter is directed through the underside of the hood; the wall jet only draws in air on the free side, namely on the air surrounding the underside of the air flow facing the vapor source.
  • the wall jet is guided safely through the wall, it adheres firmly to the wall and can even follow larger deflections on the wall.
  • the wall jet is much less sensitive to influences from the environment than a free jet.
  • the wall jet is necessary to generate the vortex due to the interaction with the air jet from the vortex nozzle.
  • the delivery rate of the suction fan arranged behind the filter area is dimensioned such that it delivers at least the amount of air from the wall jet at the filter entry area. Due to the suction effect of the jet, the initially blown air flow V o rises continuously up to the filter surface.
  • the blown air volume V o can either be taken from the suction blower on the pressure side or sucked in via a small additional blower through the filter, or can be fed to the filter as an additional blower at the front edge of the hood in the form of a pressure blast jet. If the wall jet is generated via a slot nozzle, the most important flow variables along the jet can be roughly calculated according to the free jet theory, whereby the following applies:
  • the volume flow in the jet increases as follows:
  • the jet widens with increasing barrel length and its maximum speed decreases continuously.
  • the beam spread can be estimated by the angle ⁇ , which roughly defines the beam edge at which the speed is only 10% of the maximum value ( ⁇ ⁇ 14 °).
  • the width of the filter surface must be adapted to the beam width so that the entire wall jet can be detected.
  • the wall jet offers the advantage that the suction effect is greatest at the blowing nozzle located on the front of the hood.
  • the inflow speed in the filter is evenly distributed over the entire filter surface, while in the wall jet the inflow speed v z increases corresponding to v z ⁇ 1 / ⁇ x towards the blowing nozzle.
  • v e.g. (x) 0.58v O ⁇ 1 2nd 1 x / h ; (x / h> 1).
  • the free jet formulas can only be used as a first approximation. In principle, it is a wall jet with only one free inflow surface for the vapor flow. With the formulas given above, only a rough first interpretation of the blowing and suction surface geometry is possible. The conditions can be fine-tuned experimentally using a defined hood.
  • the wall jet principle according to the present invention results in an aerodynamic vapor screen in the form of a vortex which arises at the front hood edge from the interaction of the wall jet with an additional weaker free jet or vortex jet.
  • This weaker free jet is generated with the help of a small slot, which is called the swirl nozzle, and which is approximately perpendicular to the blow slot.
  • the interaction of the two rays, namely the wall jet and the vortex jet creates a vortex that lies below the front hood edge and whose direction of rotation points downwards and inwards from the front hood edge.
  • This vortex acts beyond the edge of the hood, thus capturing the haze that blows past the edge of the hood and guides it to the blowing jet, which transports it to the filter surface.
  • the slot width b w of the swirl nozzle is approximately one third to one quarter of the blow slot width.
  • the air from the swirl nozzle is taken from the supply duct in front of the blowing nozzle, which is formed between the fan and the front hood limitation. Blowing nozzle and swirl nozzle thus work at the same total pressure.
  • the position of the vortex core can be controlled via the width of the vortex nozzle. If the width b w of the nozzle is small compared to the width of the blowing nozzle, the core is very close to the blowing jet. With a width of the blow jet nozzle of 6 mm and a width of the vortex nozzle of 2 mm, the primary vortex core is approximately 2 cm below the hood. Flow observations with smoke or strong cooking vapor show that the vortex is generated according to the described method and that it also detects the cooking vapor outside the hood. The core of the cooking vapor vortex is somewhat lower than the core of the primary air vortex.
  • the hood is equipped with a suction fan, of which about 25% of the air on the pressure side is used for the wall jet. The remaining 75% are discharged outside via the exhaust air duct.
  • the blowing air is guided in a hollow chamber or a hollow channel to the front edge of the hood, where it exits via the blowing nozzle and the vortex nozzle.
  • the rising mist is captured by the vortex and the wall jet and transported very quickly to the rear filter, where it is captured by the fan with the additionally drawn in air.
  • the flow continuity at the filter inlet is important, i. that is, the air flow of the wall jet at the filter inlet must not be greater than the conveying capacity of the fan, taking into account the flow resistance of the filter. If the blown air flow is too large, part of the air flow sweeps past the filter and down the rear wall.
  • a hood edge vortex With a hood edge vortex according to the invention, the escape of the vapor outside the hood area is prevented and cooking vapor, which rises from the stove or the source of the vapor from outside the hood, is detected and fed to the extractor hood.
  • the wall jet With the help of the wall jet, due to the high speed of this jet, the entire rising haze is detected and fed to the filter. With a suitable design, the haze does not penetrate through the wall jet, but is taken along by it, so that no precipitation of water vapor or grease can be found on the wall side of the jet, ie the underside of the extractor hood, even with strong haze development at the haze source. In contrast to normal hoods, the underside and front of the hood remain dry and clean. The formation of water vapor, which condenses on the vapor screen of a normal hood in the event of strong vapor development, is caused by the hood vortex completely avoided. The underside of the hood is always exposed to the cleaned air of the jet and therefore contaminates much more slowly than with normal hoods with pure suction operation.
  • Known extractor hoods capture the haze by suction flow.
  • the stove 1 has a hotplate 2 with saucepan 3 as a source of haze.
  • the vapor flow 4 runs upward to the filter 6 provided in the extractor hood 5, above which a fan 7 is arranged.
  • 8 shows the suction chamber, 9 the pressure chamber inside the extractor hood 5.
  • the filtered air passes from the blower 7 through the exhaust line 10 either into the open air or as purified recirculated air back into the room.
  • the speed of the rising vapor flow is indicated by arrow 11 with 12 the suction flow and with arrow 13 the exhaust air.
  • 14 denotes the underside of the extractor hood 5, 15 an intermediate floor that separates the filter 6 from the fan 7.
  • the speed of the vapor flow 11 (V D ) is many times greater than the speed of the suction flow 12 (V F ).
  • the extractor hood 16 has a filter 17 which is arranged in the rear area of the extractor hood and positioned obliquely between the rear area of the hood underside and the hood rear, forming part of the hood underside.
  • the fan 18 is arranged inclined to the filter 17. With 19 the suction chamber, with 20 the pressure chamber and with 21 the exhaust air duct. Furthermore, 11 denotes the vapor flow, 22 the wall jet on the underside of the hood, 23 the suction flow, 24 the exhaust air and 25 the blown air in the hood.
  • a blowing nozzle 26 is formed at the front, lower hood end 27. 28 shows the underside of the hood, which is the wall delimiting the flow of the wall jet 22, and 29 the intermediate floor.
  • the intermediate floor 28 is formed with a rounded front end 30 within the hood 16; the extractor hood 16 has at the front end an approximately vertically extending end face 31 and an adjoining, approximately horizontally extending lower limit 32.
  • the elements 30, 31 and 32 form the deflection channel for the blown air flow 25 within the hood and the blower nozzle 26, from which the wall jet 22 emerges, the lower limit of which is designated by 33.
  • With 34 partial flows of the suction flow 11 are shown by arrows.
  • the velocity distribution of the wall jet 22 is given in FIG. 3 in the form of the volume flow V ⁇ .
  • Fig. 4 shows the distribution of the inflow speed in the filter, namely a) with suction flow and b) with blowing flow.
  • the suction effect is distributed uniformly over the entire filter surface.
  • the suction effect at the blow-out point on the front of the hood is greatest and decreases according to curve 36 with an increasing aspect ratio x / L from curve 36.
  • the mean inflow V ⁇ / L is the same in both cases.
  • a hood edge vortex which is designated by 37, is formed in the front hood region in order to support the detection of darkness with blowing flow.
  • the underside 32 of the blowing nozzle 26 has a slot 38 through which a part 39 of the blowing air 25 emerges from the hood 16 approximately vertically downwards, while the larger part in the form of the wall jet 22 is directed against the filter 17.
  • the jet 39 emerging from the vortex nozzle 32 forms, together with the wall jet 22, a vortex whose center 40 is formed just below the hood 16;
  • a vortex flow 37 is formed around this vortex core 40, which is directed clockwise in the indicated direction of view and introduces into the wall jet 22 and is then transported together with this to the filter 17.
  • the slot width of the swirl nozzle 38 is a fraction of the slot width of the blow nozzle, about a third to a quarter.
  • the position of the vortex core 40 can be controlled via the width of the vortex nozzle.
  • the nozzle opening of the swirl nozzle 38 can preferably be designed to be adjustable, so that the ratio of the slot width from the swirl nozzle to the blowing nozzle is variable.
  • Fig. 6 shows a practical embodiment of an extractor hood with wall jet and hood edge swivel.
  • the hood consists of a rear wall 41, a top wall 42 with a recess 43 and a flange 44 for the exhaust air duct, approximately one vertically arranged partial front wall 45, an inclined wall 46 extending from wall 45 to the front, an approximately vertical wall 47 representing the lower front boundary of the hood, a bottom wall 48 and an inclined wall between bottom wall 48 and rear wall 41 receiving filter 17 Wall and side walls, not shown.
  • the fan 49 is separated from the filter area by an intermediate wall 50, so that a suction chamber 51 is formed between the intermediate wall 50 and the filter and a pressure chamber 52 is formed above the intermediate wall.
  • the intermediate wall 50 is designed as a spiral housing surrounding the fan 49, which has an opening 53 to the front of the hood, through which the blowing air 25 can reach the blowing nozzle and the vortex nozzle.
  • the blown air flows through an air duct formed by the hood housing, the shape of which is designed so that the blown flow reaches the blower nozzle or the vortex nozzle in a defined manner.
  • the embodiment shown can be easily converted into an air hood.
  • the exhaust air (as usual with other switchable hoods) is led into the kitchen with the help of a switch flap, not shown.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Cleaning In General (AREA)
  • Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Claims (9)

  1. Hotte d'évacuation de buées (5) pour l'utilisation au-dessus d'un endroit où on effectue des cuissons ou d'une source de poussière ou de buées ou émanations, avec un ventilateur d'aspiration (18), un arrangement de filtration (17) et un arrangement à buse de soufflage (26) dans la région inférieure avant de la hotte, qui dirige le courant d'air de soufflage (22) sortant du canal d'écoulement (20, 21, 27) formé dans l'enveloppe de hotte sous forme de jet circulant le long de la paroi approximativement horizontalement sous la hotte vers un filtre (17) disposé dans la zone arrière de la hotte, le jet de paroi (22) étant limité vers le haut par le côté inférieur de la hotte (28) approximativement horizontal,
    caractérisée en ce que
    a) le jet de paroi (22) est dirigé légèrement vers le bas sur son trajet de la buse de soufflage (26) au filtre (17), le filtre (17) forme dans la région arrière de la hotte une partie du côté inférieur de la hotte (28) et est agencé avec une disposition oblique vers le bas à partir du côté inférieur de la hotte (28) vers la paroi arrière de la hotte, et
    b) une tuyère à turbulence (38) dirigée vers le bas est prévue sur le côté inférieur (32) de la paroi avant de la hotte laquelle produit un courant tourbillonnaire agissant comme un écran aérodynamique pour les buées en raison de l'interaction entre le jet de paroi (22) et le jet de la tuyère à turbulence (38).
  2. Hotte d'évacuation selon la revendication 1 caractérisée en ce que l'air de soufflage (22) est prélevé à la soufflante ou au ventilateur (18) sur son côté pression (52) sous forme d'un courant de prélèvement (25), cet air est guidé dans un canal d'écoulement formé par le côté supérieur (46) de la hotte et le côté intérieur du fond (48) de la hotte, on le fait changer de direction dans la zone de la buse de soufflage (26) et il est guidé sous forme de jet de paroi (22) hors de la buse de soufflage (26).
  3. Hotte d'évacuation selon la revendication 1 caractérisée en ce qu'on prévoit un ventilateur ou soufflante séparé au bord avant de hotte (27), ventilateur qui produit le courant du jet de paroi (22) et le dirige sur le filtre (17).
  4. Hotte d'évacuation selon la revendication 1 caractérisée en ce qu'un ventilateur ou soufflante séparé est monté dans la région du filtre (17) avec lequel (ventilateur) on produit l'air de soufflage du jet de paroi.
  5. Hotte d'évacuation selon la revendication 1 caractérisée en ce que le dispositif à buse de soufflage (26) est une fente réalisée dans l'enveloppe de hotte.
  6. Hotte d'évacuation selon l'une des revendications 1 à 5 caractérisée en ce que la vitesse VB du jet de paroi est supérieure à la vitesse VD de la buée montante.
  7. Hotte d'évacuation selon l'une des revendications 1 à 6 caractérisée en ce que le débit du ventilateur d'aspiration correspond au moins à la quantité d'air du jet de paroi à la surface d'entrée du filtre.
  8. Hotte d'évacuation selon la revendication 2 caractérisée en ce que la tuyère à turbulence (38) est réalisée de manière telle que le noyau de tourbillon (40) est formé approximativement au-dessous du bord libre du côté inférieur (32) et à une faible distance de ce côté inférieur et le courant tourbillonnaire (37) va autour du noyau (40) du bord avant de la hotte vers le bas et débouche en direction du filtre (17) dans le courant d'air (22) du jet de paroi.
  9. Procédé d'aspiration de buées ou de vapeurs se formant et montant au-dessus de sources de buées ou de vapeurs au moyen d'un ventilateur d'aspiration et d'un filtre épurant l'air d'aspiration placé en amont du ventilateur d'aspiration, le courant d'aspiration étant évacué à travers le filtre et le ventilateur dans un fonctionnement à air d'évacuation et air de circulation,
    caractérisé en ce qu'on produit un jet de paroi au fond de la hotte d'évacuation, jet qui est guidé directement au-dessous de la surface du fond de la hotte d'évacuation et est amené légèrement vers le bas à un filtre disposé sur le trajet du courant d'air de soufflage de manière telle que le courant de buées approximativement vertical est entraîné par le courant d'air de soufflage approximativement horizontal et un courant tourbillonaire est produit en supplément lequel tourne autour d'un noyau de tourbillon, après avoir été dirigé, dans la région avant de la hotte, vers le bas au-delà du bord avant de la hotte, de manière telle que ce courant tourbillonnaire capte les buées montant à l'avant et les amène dans le courant du jet de paroi.
EP90109564A 1989-06-09 1990-05-19 Méthode et dispositif pour évacuer des buées Expired - Lifetime EP0401583B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90109564T ATE93042T1 (de) 1989-06-09 1990-05-19 Verfahren und einrichtung zum absaugen von daempfen und dunststoffen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3918870 1989-06-09
DE3918870A DE3918870C2 (de) 1989-06-09 1989-06-09 Verfahren und Einrichtung zum Absaugen von Dämpfen und Dunststoffen

Publications (2)

Publication Number Publication Date
EP0401583A1 EP0401583A1 (fr) 1990-12-12
EP0401583B1 true EP0401583B1 (fr) 1993-08-11

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EP90109564A Expired - Lifetime EP0401583B1 (fr) 1989-06-09 1990-05-19 Méthode et dispositif pour évacuer des buées

Country Status (6)

Country Link
US (1) US5050581A (fr)
EP (1) EP0401583B1 (fr)
JP (1) JP2868289B2 (fr)
AT (1) ATE93042T1 (fr)
DE (2) DE3918870C2 (fr)
ES (1) ES2043175T3 (fr)

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US8734210B2 (en) 2007-05-04 2014-05-27 Oy Halton Group Ltd. Autonomous ventilation system
US8795040B2 (en) 2007-08-28 2014-08-05 Oy Halton Group Ltd. Autonomous ventilation system
US9574779B2 (en) 2008-04-18 2017-02-21 Oy Halton Group, Ltd. Exhaust apparatus, system, and method for enhanced capture and containment
US10082299B2 (en) 2008-12-03 2018-09-25 Oy Halton Group Ltd. Exhaust flow control system and method

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DE4040717C1 (fr) * 1990-12-19 1992-04-02 Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De
DE4203916C1 (fr) * 1992-02-11 1993-04-29 Hannelore 8400 Regensburg De Roehl-Hager
DE19613513A1 (de) * 1996-04-04 1997-10-09 Roehl Hager Hannelore Verfahren zum Eingrenzen, Erfassen und Absaugen von Dunst, Staub oder dergleichen sowie Einrichtung zur Durchführung des Verfahrens
DE19911850B4 (de) * 1999-03-17 2010-04-08 Röhl-Hager, Hannelore Verfahren und Vorrichtung zum Eingrenzen, Erfassen und Absaugen von Schadstoffen, insbesondere bei Dunstabzugshauben
DE19957962B4 (de) * 1999-05-19 2009-01-29 Röhl-Hager, Hannelore Verfahren und Einrichtung zum Eingrenzen, Erfassen und Absaugen von fluiden Medien
EP1240464A1 (fr) 1999-12-14 2002-09-18 Georg Emanuel Koppenwallner Procede et dispositif pour separer et aspirer des fluides au moyen de generateurs de turbulences frontales
DE10015666A1 (de) * 1999-12-14 2001-06-28 Georg Emanuel Koppenwallner Verfahren und Einrichtung zum Erfassen, Trennen und Absaugen von fluiden Medien unter Verwendung von Frontalwirbelgeneratoren
WO2001051857A1 (fr) * 2000-01-10 2001-07-19 Philip Meredith Hotte d'aspiration a rideau d'air
KR100347959B1 (en) * 2001-12-28 2002-08-21 Ecta Co Ltd Ventilation hood for kitchen
US20040129263A1 (en) * 2003-01-02 2004-07-08 Chao-Cheng Chiang Ventilator having an optimum air box
US20040149278A1 (en) * 2003-01-30 2004-08-05 Chun-Ying Lin Kitchen ventilator with recirculation function
JP4495475B2 (ja) * 2004-02-02 2010-07-07 富士工業株式会社 Ｉｈクッキングヒータ用のレンジフード
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US7699051B2 (en) * 2005-06-08 2010-04-20 Westen Industries, Inc. Range hood
US20070099558A1 (en) * 2005-10-31 2007-05-03 Oagley Howard J Hood assembly
DE102007039635A1 (de) * 2007-03-20 2008-09-25 BSH Bosch und Siemens Hausgeräte GmbH Dunstabzugshaube
ITMC20070118A1 (it) * 2007-06-06 2008-12-07 Veljko Martic Cappa aspirante per cucine di innovativa concezione.
US8505530B2 (en) * 2009-11-19 2013-08-13 Itw Food Equipment Group Llc Commercial kitchen exhaust system
DE102012012551A1 (de) * 2012-06-23 2013-12-24 Heinrich Wagener Lüftungsanordnung mit einer Dunstabzugshaube
GB2526487B8 (en) 2013-03-15 2017-03-15 Oy Halton Group Ltd Water spray fume cleansing with demand-based operation
NL2011635C2 (en) * 2013-10-17 2015-04-20 Randolph Beleggingen B V Kitchen air extraction canopy having a cavity with air guiding and directing delimiting wall.
DE202016004286U1 (de) 2016-07-13 2016-08-12 Heinrich Wagener Lüftungsanordnung mit einer Dunstabzugshaube
KR102557926B1 (ko) * 2016-11-07 2023-07-21 삼성전자주식회사 후드 겸용 조리기기
CN107957085B (zh) * 2017-11-27 2023-01-03 佛山市云米电器科技有限公司 一种可移动式油烟机
JP6549811B1 (ja) * 2018-10-02 2019-07-24 明彦 山口 レンジフードやファンの汚染防止技術
JP6687956B1 (ja) * 2019-07-11 2020-04-28 明彦 山口 レンジフードの排煙ダクトの汚染防止方法
EA037076B1 (ru) * 2019-08-12 2021-02-02 Федеральное государственное бюджетное образовательное учреждение высшего образования "Петербургский государственный университет путей сообщения Императора Александра I" Устройство для вентиляции воздуха над плитой для приготовления пищи
DE102022134182A1 (de) * 2022-12-20 2024-06-20 Südluft Systemtechnik GmbH Lüftungshaube zur Erfassung von Wrasendämpfen und Kücheninstallation

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US8444462B2 (en) 2004-07-23 2013-05-21 Oy Halton Group Ltd. Control of exhaust systems
US9011215B2 (en) 2004-07-23 2015-04-21 Oy Halton Group Ltd. Control of exhaust systems
US9188354B2 (en) 2004-07-23 2015-11-17 Oy Halton Group Ltd. Control of exhaust systems
US11242999B2 (en) 2004-07-23 2022-02-08 Oy Halton Group Ltd. Control of exhaust systems
US8734210B2 (en) 2007-05-04 2014-05-27 Oy Halton Group Ltd. Autonomous ventilation system
US9127848B2 (en) 2007-05-04 2015-09-08 Oy Halton Group Ltd. Autonomous ventilation system
US8795040B2 (en) 2007-08-28 2014-08-05 Oy Halton Group Ltd. Autonomous ventilation system
US9587839B2 (en) 2007-08-28 2017-03-07 Oy Halton Group Ltd. Autonomous ventilation system
US9574779B2 (en) 2008-04-18 2017-02-21 Oy Halton Group, Ltd. Exhaust apparatus, system, and method for enhanced capture and containment
US10471482B2 (en) 2008-04-18 2019-11-12 Oy Halton Group Ltd. Exhaust apparatus, system, and method for enhanced capture and containment
US10082299B2 (en) 2008-12-03 2018-09-25 Oy Halton Group Ltd. Exhaust flow control system and method

Also Published As

Publication number Publication date
DE3918870A1 (de) 1990-12-13
DE3918870C2 (de) 1995-06-29
JPH0331634A (ja) 1991-02-12
ES2043175T3 (es) 1993-12-16
EP0401583A1 (fr) 1990-12-12
DE59002272D1 (de) 1993-09-16
ATE93042T1 (de) 1993-08-15
JP2868289B2 (ja) 1999-03-10
US5050581A (en) 1991-09-24

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